Continuously-operating drying and carbonizing kiln.



PATENTEDJUNE 23, 190B.

R. BOGK. CONTINUOUSLY OPERATING DRYING AND GARBONIZING K ILN.

ABPYLIGATION FILED NOV. 7. 1907.

2 SHBET8;SHEET 1.

Inventor;

Witnesse s.

v.1 .N I flu Q. 3 v I m. V w G u .J m 2 T N E B .T R A M P 7 Dm v .G KN ID OYm BR R N u mum Mm H A 0 Y L s U 0 U E I T, ME 0 G Witnesses.

srArp-s rT T OFHCEQ RICHARD BOOK, OF PRAGUE-Sh/IIGHOW, AUSTRIA-HUNGARY.

conrmuousnrror'nnarme DRYING- Ann cartisomnxne Application filed November 7,

To alt whom it may concern:

Prague-Smichow, in Bohemia, Austria-Hum nary, a subject of the Emperor of Austria- Iungary. have. invented certain new and useful Improvements in Continu ously-Operating Drying and Carbonizing Kilns; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it ap ertains to make and use the same; reference eing had. to the accompanying drawin s, and to letters or figures of reference marked thereon, which form. a part of this specification.

This invention relates to improvements in continuously operating kilns in'which ad jacent chambers, through which the material to be treated is conveyed by an endless carrier, communicate alternately at the top and bottom, and the object of the invention is to provide an apparatus particularly to the drying and carbonizing of soluble binding material in briquets and to prevent theburnm or combustion of materials to be treated or In the drawings accompanying and ing part of this specification detail certain advantageous forms of embodiment of the invention which, to enable those andled at high temperatures.

' formskilled in the art to practice the same, will be setforth in detail 111 tion while the novelt of the invention Wlll be included in the'clalms succeeding said description. w. v

In said drawings Figure '1 is a vertical I longitudinal section of one formof kiln espesame reference characters.

cial y designed for carrying into effect the objects of the invention; Fig. 2 a horizontal section on line y -y of Fig. 1 and Figs. 3 and 4am vertical sections t r conduits of kilns having mo cooling devices.

Corresponding and like parts are referred to in the following description and indicated in the several views of the drawings by the ified forms of Kilns constructed according tion diiier essentially from those already known in that the space t'raversed'by the material comprises three subdivisions instead of two. In the first of these subdivisio'ns the air is excluded and the material gradually heated, in the next of these a cooling of the material occurs without the ,aid of a current of air while Specification of Letters Patent.

f through said adapted;

" chambers are made hollow off the evolved vapors or gases, from the ma have shown in the following descrip on b the cooling to this inven-.

in the third subdivision 1 Patented June 23, 1908. 1907. Serial No. 401,146.

the material is further cooled by the application of a cold air current. The gases or vapors may be-drawn oil. by means of suitable partitions between the chambers and conveyed away as may be necessary.

The kiln is divided in a wellknown manner into chambers a, a and b, communicating alternately at the top and bottom. The

'material to be treated 1s-conveyed in an ascending and descending path by means iii an endless conveyer such as chain c carrying suitable receptacles as d.

The kiln isdivided into the above mentioned subdivisions and the chambers (t and a cut off from the outer air passages such as 6 being always closedb y one or more of the receptacles The chambers a are which enter at a, and are conducted by ilues chambers and away from chamber a in a direction opposite to that in which the receptacles (Z travel so that the ma terial passing through said chambers is grade ually heated.

Partitions g which divide the kiln into and serve to draw terial being treated, through passages controlled by dampers such as h to a flue k.

The chamber a not beingheated by the hot gases which enter at (i the temperature of the material in its passage therethrough is cooled and as said chamber is sealed from the atmosphere ignition of the material by contact with air'is 'revented; The material may be finally cool d in chamber binto which the outer air is admitted through loading and unioading op en' g 0. This air travels through the subdivision in the op osite direction to that in which the materia moves and escapes into the flue is through a passage controlled by dampe r y The coolingof the material in chamber a may be effected by s raying water onto the material as illustrate in Fig. 3. Thisis accom lished by means of a spray-tube 'n erably mounted beneath the hollow partition g so that, sprays of water are projected onto the material in its downwar and upward as'sage ast the sprays. rmed y the contact passage controlled by a damper 1.1

The temperature of the chamber may also be lowered as illustrated in Fig. 4. In this instance the hollow pantition g is preferably heated by hot gases ref- The steam or vapor of the water. on the hot material passes ofi into flue kthrough a by contracted chambers by a contracted passage, a champartition near t 1e top thereof are placed sprinkling tubes n These tubes project streams of cold Water against the sides of the I rorming'closures for the contracted passages. flue Walls which Water ows down and passes o. A kiln having a contracted entrance out at the bottom through an opening 0 and passage, hollow partitions dividing the kiln is conducted off through a pipe, not shown, into a plurality of communicating chambers, coinnliunicating With the opening. a flue communicating with the artitions,

0 arm:

1. A kiln comprising a plurality of cliambers alternately communicating at their tops and bottoms and having contracted passages made-of sheet metal and on the insideof said to the cooling chamber by a contracted connected With the heating chambers by a -t e top of the kiln forming a fplurality of I contracted passage, an endless carrier movheatingchambers, a heating able through the chambers and receptacles from a central air intake and extending beonthe carrier forming a closure for the contween the partitions, a sealed chamber connected with the heating chamber by a con- 3. iln comprising a plurality of scaled heating chambers alternately communicat ing at their tops and bottoms, a sealed cooling chamber connected With the heatin chambar by a contracted passage, an end ess carrier movable through said chambers, and

Wlth the latter by a contracted passage, an

sures for the contracted passages, a draft said chambers, forming a closure for the contracted passage.

4. A '11 comprising a pluralitv of heating chambers alternately communicating at their tops and bottoms, and having a valve passages connecting the partitions and chambers. In testimony that I claim the fore going as presence of two subscribin Witnesses.

RIC IARD BOCK. Witnessesz.

STANSTR LEoNNARs, Sr.,

ber communicating with the air connected OLPH FISCHER.

chamber, an air cooled chamber connected endless carrier movable through said cham bers', receptacles on the carnerforming clov -my invention, I ave signed my name in v 

